201340957 has 2 divisors, whose sum is σ = 201340958. Its totient is φ = 201340956.

The previous prime is 201340943. The next prime is 201340969. The reversal of 201340957 is 759043102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 178863876 + 22477081 = 13374^2 + 4741^2 .

It is a cyclic number.

It is not a de Polignac number, because 201340957 - 2²³ = 192952349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201340907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100670478 + 100670479.

It is an arithmetic number, because the mean of its divisors is an integer number (100670479).

Almost surely, 2^201340957 is an apocalyptic number.

It is an amenable number.

201340957 is a deficient number, since it is larger than the sum of its proper divisors (1).

201340957 is an equidigital number, since it uses as much as digits as its factorization.

201340957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 201340957 is about 14189.4664099817. The cubic root of 201340957 is about 586.1076314548.

The spelling of 201340957 in words is "two hundred one million, three hundred forty thousand, nine hundred fifty-seven".